Review of paleomagnetic data from the Klamath Mountains, Blue Mountains, and Sierra Nevada; Implications for paleogeographic reconstructions
Edward A. Mankinen, William P. Irwin
1990, Book chapter, Paleozoic and Early Mesozoic Paleogeographic Relations; Sierra Nevada, Klamath Mountains, and Related Terranes: GSA Special Papers v. 255
Paleomagnetic studies of the Klamath Mountains, Blue Mountains, Sierra Nevada, and northwestern Nevada pertain mostly to Jurassic and Cretaceous rocks, but some data also are available for Permian and Triassic rocks of the region. Large vertical-axis rotations are indicated for rocks in many of the terranes, but few studies show...
Mudflow rheology in a vertically rotating flume
Robert R. Holmes Jr., Jerome A. Westphal, Harvey E. Jobson
French Richard H., editor(s)
1990, Conference Paper, Hydraulics/Hydrology of Arid Lands
Joint research by the U.S. Geological Survey and the University of Missouri-Rolla currently (1990) is being conducted on a 3.05 meters in diameter vertically rotating flume used to simulate mudflows under steady-state conditions. Observed mudflow simulations indicate flow patterns in the flume are similar to those occurring in natural mudflows....
Combustion and leaching behavior of elements in the argonne premium coal samples
R. B. Finkelman, C.A. Palmer, M.R. Krasnow, P. J. Aruscavage, G.A. Sellers, F.T. Dulong
1990, Energy & Fuels (4) 755-766
Eight Argonne Premium Coal samples and two other coal samples were used to observe the effects of combustion and leaching on 30 elements. The results were used to infer the modes of occurrence of these elements. Instrumental neutron activation analysis indicates that the effects of combustion and leaching on many...
Evidence against a late Wisconsinan ice shelf in the Gulf of Maine
R. N. Oldale, R.S. Williams Jr., Steven M. Colman
1990, Quaternary Science Reviews (9) 1-13
Proposals for the formation of a late Wisconsinan ice shelf in the Gulf of Maine during the retreat of the Laurentide Ice Sheet are considered to be inappropriate. An Antarctic-type ice shelf does not fit the field data that indicate temperate glacial, terrestrial, and marine climates for the region between...
Carbon dioxide retention and carbon exchange on unsaturated Quaternary sediments
Robert G. Striegl, D.E. Armstrong
1990, Geochimica et Cosmochimica Acta (54) 2277-2283
Retention of CO2 on three air-dried and partly water-saturated glacial and eolian sediments was measured at 20°C for a range in, PCO2 that commonly occurs in unsaturated zones. Ratios of the relative losses of CO2 and 14CO2 from a surrogate atmosphere overlying the sediments were 1:1 for the dry condition. For the wet condition, those relative...
Mass-balance model for predicting nitrate in ground water
Michael H. Frimpter, John J. Donohue, Michael V. Rapacz
1990, Journal of the New England Water Works Association (104) 219-232
A mass-balance accounting model can be used to guide the management of septic systems and fertilizers to control the degradation of ground-water quality in zones of an aquifer that contribute water to public-supply wells. The nitrate concentration of the mixture in the well can be predicted for steady-state conditions by...
Geology of Medicine Lake Volcano, Northern California Cascade Range
Julie Donnelly-Nolan
1990, Conference Paper, Transactions - Geothermal Resources Council
Medicine Lake volcano (MLV) is located in an E-W extensional environment on the Modoc Plateau just east of the main arc of the Cascades. It consists mainly of mafic lavas, although drillhole data indicate that a larger volume of rhyolite is present than is indicated by surface mapping. The most...
Simulated effects of climatic change on runoff and drought in the Delaware River Basin
Mark A. Ayers, Gary D. Tasker, David M. Wolock, Gregory J. McCabe, Lauren E. Hay
Singh Udai P.Helweg Otto J., editor(s)
1990, Conference Paper, Supplying Water and Saving the Environment for Six Billion People
Various projection of climatic change were applied to watershed models of the Delaware River basin. Simulations indicate that a warming could reduce annual runoff by as much as 25 percent if current precipitation patterns continue. Simulations indicate that the largest changes in basin drought are in response to relatively small...
Avalon terrane in eastern coastal Maine: Seismic refraction-wide-angle reflection data
J. Luetgert, C.E. Mann
1990, Geology (18) 878-881
A 145-km-long seismic refraction line recorded parallel to the eastern coastline of Maine within the Avalon terrane provides information about the crustal velocity structure within the Avalon block and its relation to other Appalachian terranes. A crustal velocity model for the upper 8...
Is the polar bear (Ursus maritimus) a hibernator? Continued studies on opioids and hibernation
David S. Bruce, Nancy K. Darling, Katheleen J. Seeland, Peter R. Oeltgen, Sita P. Nilekani, Steven C. Amstrup
1990, Pharmacology Biochemistry and Behavior (35) 705-711
Polar bear behavior and biochemistry suggest they may have the ability to hibernate year-round, even though this species is not considered to be a true hibernator. This observation, plus the discovery of a hibernation-induced trigger (HIT) in the blood of black bears, prompted the examination of polar bear blood collected...
Seasonal movements of adult female polar bears in the Bering and Chukchi seas
Gerald W. Garner, Steven T. Knick, David C. Douglas
1990, Bears: Their Biology and Management (8) 219-226
Ten adult female polar bears (Ursus maritimus) were fitted with satellite telemetry collars during March 1986 in the Kotzebue Sound area of the Chukchi Sea. During March-April 1987, 2 of these bears were refitted with satellite telemetry collars and an additional 10 adult females were collared in the northern Bering...
Sago pondweed (Potamogeton pectinatus L.): A literature review
Harold A. Kantrud
1990, Resource Publication 176
Sago pondweed (Potamogeton pectinatus L.) is a submersed macrophyte of nearly cosmopolitan distribution. The plant is of worldwide importance as a waterfowl food but also can be a nuisance in irrigation canals and recreational areas. The plant reproduces by many different means, depending on habitat and environmental stress. Several genetic...
Introduction
Fred P. Meyer
Fred P. Meyer, Lee A. Barclay, editor(s)
1990, Resource Publication 177-1
No abstract available....
Geology of the Blue Mountains region of Oregon, Idaho, and Washington: Cenozoic geology of the Blue Mountains region
G.W. Walker, editor(s)
1990, Professional Paper 1437
No abstract available....
Toxic substances
J. B. Hunn, R. A. Schnick
Fred P. Meyer, Lee A. Barclay, editor(s)
1990, Resource Publication 177-4
No abstract available....
Use of feather meal in lake trout diets
S. G. Hughes
1990, Research Information Bulletin 26
No abstract available at this time...
Test your skill
Fred P. Meyer
Fred P. Meyer, Lee A. Barclay, editor(s)
1990, Resource Publication 177-13
No abstract available....
Hillslope erosion at the Maxey Flats radioactive waste disposal site, northeastern Kentucky
W. P. Carey, M. A. Lyverse, C.R. Hupp
1990, Water-Resources Investigations Report 89-4199
No abstract available....
Order and diversity in the modes of circum-Pacific earthquake recurrence
W. Thatcher
1990, Journal of Geophysical Research Solid Earth (95) 2609-2623
Recurrence characteristics of great circum-Pacific earthquakes and determinations of spatial distribution of seismic moment release are surveyed in order to delineate their general features and relate earthquake slip distribution to models of recurrent rupture. As noted by others, the pattern of moment release is typically very irregular, with strong concentrations...
Brood habitat use of Rio Grande wild turkeys
Joel A. Schmutz, Clait E. Braun, William F. Andelt
1990, Prairie Naturalist (22) 177-184
Habitat use of 14 Rio Grande wild turkey (Meleagris gallopavo) broods was studied in riparian habitats in northeast Colorado in 1986-87. Of 191 locations, 78% were within the riparian zone, 11 % in agricultural uplands, and 11 % on the edge between these habitats. Use of habitats was dependent on...
Climate factor for small-basin flood frequency
R.W. Lichty, M.R. Karlinger
1990, Water Resources Bulletin (26) 577-586
A climate factor, CT, (T = 2-, 25-, and 100-year recurrence intervals) that delineates regional trends in small-basin flood frequency was derived using data from 71 long-term rainfall record sites. Values of CT at these sites were developed by a regression analysis that related rainfall-runoff model estimates of T-year floods...
Well-purging criteria for sampling purgeable organic compounds
J. Gibs, T.E. Imbrigiotta
1990, Ground Water (28) 68-78
The results indicate that 1) purgeable organic compound concentrations stabilized when three casing volume were purged in only 55% of the cases evaluated in this study, 2) purgeable organic compounds concentrations did not consistently follow the temporal variation of, nor stabilize at the same time as, the measure field characteristics,...
Error in telemetry studies: Effects of animal movement on triangulation
Joel A. Schmutz, Gary C. White
1990, Journal of Wildlife Management (54) 506-510
We used Monte Carlo simulations to investigate the effects of animal movement on error of estimated animal locations derived from radio-telemetry triangulation of sequentially obtained bearings. Simulated movements of 0-534 m resulted in up to 10-fold increases in average location error but <10% decreases in location precision when observer-to-animal distances...
Potentiometric surface of the Edwards-Trinity aquifer system and contiguous hydraulically connected units, west-central Texas, winter, 1974-75
Eve L. Kuniansky
1990, Water-Resources Investigations Report 89-4208
The potentiometric surface of the Edwards-Trinity aquifer system and contiguous hydraulically connected units (from December 1974 through February 1975) was mapped as part of the Edwards-Trinity Regional Aquifer-System Analysis (RASA) project. A major goal of the Edwards-Trinity RASA project is to understand and describe the regional flow system (Bush, 1986)....
Avifaunal remains from the Utqiagvik Village Site, North Alaska
J.E. Lobdell, Robert E. Gill Jr.
Edwin S. Hall Jr., editor(s)
1990, Book chapter, 1981 excavations at the Utqiagvik Archaeological Site, Barrow, Alaska - Volume I
No abstract available....
